The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2018
Filed:
Apr. 02, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Kazuhide Yamamoto, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An air-conditioning apparatus includes a refrigeration cycle charged with non-azeotropic refrigerant mixture and refrigerating machine oil. A suction pipe which is a refrigerant pipe connecting between a suction port of a compressor and an accumulator has an end portion on the side of the accumulator extending into the accumulator. In addition, the suction pipe of the air-conditioning apparatus includes an oil return hole formed in a portion of the suction pipe located inside the accumulator at a position higher than a central portion of the accumulator. A controller of the air-conditioning apparatus controls an opening degree of a pressure reducing device so as to make quality of refrigerant flowing into the accumulator less than 1.